Revert "Merge branch 'canary' into master" (#712)

Revert "Merge branch 'canary' into master (#711)"

This reverts commit 8a597a5c9c.

layouts/partials/head/colorScheme.html

@@ -1,5 +1,5 @@
-{{- $defaultColorScheme := .Site.Params.colorScheme.default -}}
-{{- if not .Site.Params.colorScheme.toggle -}}
+{{- $defaultColorScheme := default "auto" .Site.Params.colorScheme.default -}}
+{{- if not (default false .Site.Params.colorScheme.toggle) -}}
     {{/* If toggle is disabled, force default scheme */}}
     <script>
         (function() {

layouts/partials/head/head.html

@@ -19,12 +19,7 @@
 {{- end -}}
 
 {{ with .Site.Params.favicon }}
-    {{ $favicon := resources.Get . }}
-    {{ if $favicon }}
-        <link rel="shortcut icon" href="{{ $favicon.RelPermalink }}" />
-    {{ else }}
-        {{ errorf "Failed loading favicon from %q" . }}
-    {{ end }}
+    <link rel="shortcut icon" href="{{ . }}" />
 {{ end }}
 
 {{- template "_internal/google_analytics.html" . -}}

layouts/partials/head/opengraph/provider/twitter.html

@@ -11,6 +11,6 @@
 
 {{- $image := partialCached "helper/image" (dict "Context" . "Type" "opengraph") .RelPermalink "opengraph" -}}
 {{- if $image.exists -}}
-    <meta name="twitter:card" content="{{ .Site.Params.opengraph.twitter.card }}">
+    <meta name="twitter:card" content="{{ default `summary_large_image` .Site.Params.opengraph.twitter.card }}">
     <meta name="twitter:image" content='{{ absURL $image.permalink }}' />
 {{- end -}}